well first i have to thank everyone here at this forum for making this posible... before i start this i was looking to solve my problm of buffer underrun and i found the overclocking stuff..well first i did the jumper as the image in this forum, after that i updated the firmware useing the pflash over the primary slave (/ps) i used the ls17 bin file after that i took the jumper off, i started my PC but i could burn a CD i got a msg of calibrating error, no more underbuffer error..i fix it but i got into other, then i read about the manufacturing date n mine was of september 2000, so i update the firmware with the ls3822.exe ( that u can get it from the liteon site9...yes i used that file as a last resource so... i burned a CD and i could using the burn proof, at 12x with the dma option also( i think thats very important) disk at once, overburn to 84 min well thank every one for the tips...now i have to fix my web cam thanks n sorry for my english, hope i made my self understood!!!! Tränce Budhä from mexico!!! 8====D - - -